{
  "annotation_id": "603456de-527e-45d4-933f-c4a1cc33451d",
  "date_created": "2026-03-02T18:01:24.814000Z",
  "date_modified": "2026-03-02T18:01:24.814000Z",
  "file_hash": "33dd9d0bdb2cbd4f70ca0f41fe6acd82c4c040e64854a0faed634d98ce7d3253",
  "private": false,
  "record": {
    "abstract": "It is shown that one can stimulate, by using the present-day laboratory\nmagnetic fields, transitions between the $lm$ sub-levels of fast $\\mu He^+$\nions formating in muon catalyzed fusion. Strong fields also cause the\nself-ionization from highly excited states of such muonic ions. Both effects\nare the consequence of the interaction of the bound muon with the oscillating\nfield of the Stark term coupling the center-of-mass and muon motions of the\n$\\mu He^+$ ion due to the non-separability of the collective and internal\nvariables in this system. The performed calculations show a possibility to\ndrive the population of the $lm$ sub-levels by applying a field of a few\n$Tesla$, which affects the reactivation rate and is especially important to the\n$K\\alpha$ $x$-ray production in muon catalyzed fusion. It is also shown that\nthe $2s-2p$ splitting in $\\mu He^+$ due to the vacuum polarization slightly\ndecreases the stimulated transition rates.",
    "arxiv_id": "physics/9909030",
    "authors": [
      "Vladimir S. Melezhik",
      "Peter Schmelcher"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.59.4264",
    "journal_ref": "Physical Review A 59, 4264 (1999)",
    "title": "Magnetic Field Stimulated Transitions of Excited States in Fast Muonic   Helium Ions",
    "url": "https://arxiv.org/abs/physics/9909030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a061c03f-3e99-41ed-bb91-fe6341a1685e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}